40104003997 has 2 divisors, whose sum is σ = 40104003998. Its totient is φ = 40104003996.

The previous prime is 40104003983. The next prime is 40104004063. The reversal of 40104003997 is 79930040104.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 34553604996 + 5550399001 = 185886^2 + 74501^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40104003997 is a prime.

It is a super-2 number, since 2×40104003997² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40104003977) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20052001998 + 20052001999.

It is an arithmetic number, because the mean of its divisors is an integer number (20052001999).

Almost surely, 2^40104003997 is an apocalyptic number.

It is an amenable number.

40104003997 is a deficient number, since it is larger than the sum of its proper divisors (1).

40104003997 is an equidigital number, since it uses as much as digits as its factorization.

40104003997 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27216, while the sum is 37.

The spelling of 40104003997 in words is "forty billion, one hundred four million, three thousand, nine hundred ninety-seven".